package com.itheima.web.servlet;

import java.io.IOException;
import java.lang.reflect.Method;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class BaseServlet extends HttpServlet {

	@Override
	protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		request.setCharacterEncoding("UTF-8");
		try {
			//1.获取请求的method的名称
			String methodName = request.getParameter("method");
			//2.获得当前被访问的对象的字节码对象
			Class clazz =this.getClass();// ProductServlet.class 
			//3.获得当前字节码对象中的指定方法
			Method method = clazz.getMethod(methodName, HttpServletRequest.class,HttpServletResponse.class);
			//4.执行相应功能方法
			method.invoke(this, request,response);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} 
	}
}